The Internet of Things (IoT) is expected to provide ubiquitous wireless machine-type
communication devices and extensive information collection, resulting in an unprecedented …

Owing to the eminent performance gain, non-orthogonal multiple access (NOMA) has been
regarded as a promising approach to achieve high throughput and low latency for the next …

In this paper, an Internet-of-Things (IoT) system containing a relay selection is studied as
employing an emerging multiple access scheme, namely non-orthogonal multiple access …

Non-orthogonal multiple access (NOMA) is an efficient approach that can improve spectrum
utilization and support massive connectivity for next-generation wireless networks. However …

Non-orthogonal multiple access (NOMA) has been developed as a key multi-access
technique for 5G. However, secure transmission remains a challenge in NOMA. Especially …

The key idea of non-orthogonal multiple access (NOMA) is to serve multiple users in the
same resource block to improve the spectral efficiency. Whereas due to the resource …

In this paper, we propose a novel beamforming design to enhance physical layer security of
a non-orthogonal multiple access (NOMA) system with the aid of artificial noise (AN). The …

Considering the diversified communication requirements in the Internet-of-Things (IoT)
networks, this article proposes a nonorthogonal multiple access (NOMA) scheme which …

We investigate physical layer security of an uplink NOMA system consisting of one base
station, multiple users and one eavesdropper. During each uplink transmission, two users …

This paper investigates the secrecy outage performance for a large-scale downlink system
with full-duplex (FD) non-orthogonal multiple access (NOMA) transmission aided by artificial …